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KVM: arm64: Fix compilation when CONFIG_ARM64_USE_LSE_ATOMICS=n

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__lse_swap_desc() is compiled unconditionally, even if LSE is disabled
using the config option. Align with the spirit of the config option and
fix some build errors due to __LSE_PREAMBLE being undefined with the
application of some ifdeffery.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202511250700.kAutzJFm-lkp@intel.com/
Link: https://msgid.link/20251124235409.1731253-1-oupton@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Oliver Upton 2025-11-24 15:54:09 -08:00
parent 66f1888583
commit 36fe022f88
1 changed files with 7 additions and 0 deletions
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7
arch/arm64/kvm/at.c
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@ -1697,6 +1697,7 @@ int __kvm_find_s1_desc_level(struct kvm_vcpu *vcpu, u64 va, u64 ipa, int *level)
}
}
#ifdef CONFIG_ARM64_LSE_ATOMICS
static int __lse_swap_desc(u64 __user *ptep, u64 old, u64 new)
{
u64 tmp = old;
@ -1721,6 +1722,12 @@ static int __lse_swap_desc(u64 __user *ptep, u64 old, u64 new)
return ret;
}
#else
static int __lse_swap_desc(u64 __user *ptep, u64 old, u64 new)
{
return -EINVAL;
}
#endif
static int __llsc_swap_desc(u64 __user *ptep, u64 old, u64 new)
{